December 1, 2015
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Entex Pse

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Entex Pse

Side Effects


Gastrointestinal:   nausea and vomiting.

Central Nervous System:   nervousness, dizziness, sleeplessness, lightheadedness, tremor, hallucinations, convulsions, CNS depression, fear, anxiety, headache, increased irritability or excitement.

Cardiovascular:   palpitations, tachycardia, cardiovascular collapse and death.

General:   weakness.

Respiratory:   respiratory difficulties.

Read the Entex Pse (pseudoephedrine and guaifenesin) Side Effects Center for a complete guide to possible side effects


MAO inhibitors and beta adrenergic blockers increase effects of sympathomimetics. Sympathomimetics may reduce the antihypertensive effects if methyldopa, guanethidine, mecamylamine, reserpine and veratrum alkaloids.

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 12/8/2004

Side Effects

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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